rpi_initialization.sh

#!/bin/bash

sudo -i

## variables
HOSTNAME_NEW=rasple

## Delete some packages
apt-get purge wolfram-engine
apt-get purge libreoffice*
apt-get clean
apt-get autoremove

## Updates
apt-get update && apt-get upgrade -y && apt-get dist-upgrade -y
apt-get autoremove -y && apt-get clean -y && apt-get autoclean -y && rm -rf /var/lib/apt/lists/*

## rpi-update
rpi-udpate
# sudo BRANCH=next rpi-update

## Set new hostname
hostname -b {HOSTNAME_NEW}
echo hostname

## New ssh keys
rm /etc/ssh/ssh_host_*
dpkg-reconfigure openssh-server
service ssh restart

## webmin installation
echo "deb http://download.webmin.com/download/repository sarge contrib" >> /etc/apt/sources.list
wget http://www.webmin.com/jcameron-key.asc -qO - | apt-key add -
apt-get update && apt-get install -y webmin=1.831* && apt-get clean -y && apt-get autoclean -y && rm -rf /var/lib/apt/lists/*

## Docker installation
# https://docs.docker.com/engine/installation/linux/raspbian/ 
# http://blog.alexellis.io/getting-started-with-docker-on-raspberry-pi/
curl -sSL https://get.docker.com | sh
# The Docker client can only be used by root or members of the docker group. Add pi or your equivalent user to the docker group
usermod -aG docker pi # ${USER}
# set Docker to auto-start
systemctl enable docker
# start the Docker daemon
systemctl start docker

## docker-compose installation
# Installation with pip due to no official armv7 binaries
# Available versions: https://pypi.python.org/pypi/docker-compose/
pip3 install docker-compose # ==<version>

##
reboot